Related Clues:

• Pay (up), as a debt
• Onager
• Fork over, with "up"
• Prospector's bearer
• Hybrid equine
• Grand Canyon critter
• Track runner
• ''A Midsummer Night's Dream'' animal
• Slipper choice
• ''Equus'' member
• Eeyore, e.g.
• Jerk-off
• Prospector's beast of burden
• Birthday gift wish for little girls
• Zebra kin